19691064

素因数分解:

$2^3\times 3^2\times {\mathrm{491}}^1\times {\mathrm{557}}^1$

素因数の和:1060

約数の個数: 48

約数和(自身を含む): 53534520

約数和(自身を除く): 33843456

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 491, 557, 982, 1114, 1473, 1671, 1964, 2228, 2946, 3342, 3928, 4419, 4456, 5013, 5892, 6684, 8838, 10026, 11784, 13368, 17676, 20052, 35352, 40104, 273487, 546974, 820461, 1093948, 1640922, 2187896, 2461383, 3281844, 4922766, 6563688, 9845532, 19691064]

約数ペア:

[(1, 19691064), (2, 9845532), (3, 6563688), (4, 4922766), (6, 3281844), (8, 2461383), (9, 2187896), (12, 1640922), (18, 1093948), (24, 820461), (36, 546974), (72, 273487), (491, 40104), (557, 35352), (982, 20052), (1114, 17676), (1473, 13368), (1671, 11784), (1964, 10026), (2228, 8838), (2946, 6684), (3342, 5892), (3928, 5013), (4419, 4456)]